diff --git a/articles.php b/articles.php
index c902724..fbe6528 100644
--- a/articles.php
+++ b/articles.php
@@ -133,10 +133,16 @@ $conn->close();
         <?php echo $message; ?>
         
         <div class="filter-controls p-3 border-bottom bg-light">
-            <div class="row g-2">
-                <div class="col-md-5"><input type="text" id="filter-text" class="form-control form-control-sm" placeholder="Suchen..."></div>
+            <div class="row g-2 align-items-center">
+                <div class="col-md-4"><input type="text" id="filter-text" class="form-control form-control-sm" placeholder="Suchen..."></div>
                 <div class="col-md-3"><select id="filter-category" class="form-select form-select-sm"><option value="">Alle Kategorien</option><?php foreach($categories_for_filter as $cat) echo '<option value="'.$cat['id'].'">'.htmlspecialchars($cat['name']).'</option>'; ?></select></div>
-                <div class="col-md-4"><select id="filter-manufacturer" class="form-select form-select-sm"><option value="">Alle Hersteller</option><?php foreach($manufacturers_for_filter as $man) echo '<option value="'.$man['id'].'">'.htmlspecialchars($man['name']).'</option>'; ?></select></div>
+                <div class="col-md-3"><select id="filter-manufacturer" class="form-select form-select-sm"><option value="">Alle Hersteller</option><?php foreach($manufacturers_for_filter as $man) echo '<option value="'.$man['id'].'">'.htmlspecialchars($man['name']).'</option>'; ?></select></div>
+                <div class="col-md-2 text-end">
+                    <div class="btn-group btn-group-sm" role="group">
+                        <button type="button" class="btn btn-outline-secondary" id="btn-expand-all" title="Alle ausklappen"><i class="fas fa-expand-alt"></i></button>
+                        <button type="button" class="btn btn-outline-secondary" id="btn-collapse-all" title="Alle einklappen"><i class="fas fa-compress-alt"></i></button>
+                    </div>
+                </div>
             </div>
         </div>
 
@@ -385,6 +391,18 @@ document.addEventListener('DOMContentLoaded', function () {
     filterCategory.addEventListener('change', renderTable);
     filterManufacturer.addEventListener('change', renderTable);
 
+    document.getElementById('btn-expand-all').addEventListener('click', function() {
+        collapsedCategories.clear();
+        renderTable();
+    });
+
+    document.getElementById('btn-collapse-all').addEventListener('click', function() {
+        // Find all currently rendered categories
+        const visibleCategories = Array.from(document.querySelectorAll('.category-header')).map(el => el.getAttribute('data-category'));
+        visibleCategories.forEach(c => collapsedCategories.add(c));
+        renderTable();
+    });
+
     renderTable();
 });
 </script>